better netsuite

Provides fixes for the useless UI of netsuite.

Added features:
- enlarged input box for timelog description
- summary table for logged hours per project

v1.2:
- editable Hourly fee field
- billable amount is calculated per project and total
- minor code refactor

v1.3
- szamlazz.hu "integration", to auto-create an invoice draft, based on summary table

v1.4
- updated CSS to match netsuite's updated HTML

v1.5
- hourly fee can be set per project

v1.6
- invoice generation logic changed to show actual hours

v1.7
- updated CSS to match netsuite's updated HTML

v1.8
- updated selector to inject the summary table, due to Netsuite changes